Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HS

Howard R. Spires

S(Syntex (U.S.A.): 1 patents #356 of 599Top 60%
Sunnyvale, CA: #10,174 of 14,302 inventorsTop 75%
California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,054,766 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4394377 Ruminant animal performance by co-administering choline and propionate enchancers 1983-07-19